Contacts of the helix formed by residues 944 - 969 (chain G) in PDB entry 1SOJ


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with VAL 944 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678G  ASN*     2.7    31.3    +      -       +      +
    943G  LYS*     1.3    76.5    -      -       -      +
    945G  ARG*     1.3    69.9    +      -       +      +
    946G  ASP*     3.9    15.0    -      -       +      +
    947G  LEU*     3.7    27.8    -      -       +      +
    948G  HIS*     3.0    16.1    +      -       -      +
   1064G  HIS*     3.4    21.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 945 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    943G  LYS      3.7     0.6    +      -       -      -
    944G  VAL*     1.3    78.3    -      -       +      +
    946G  ASP*     1.3    65.4    +      -       -      +
    948G  HIS*     3.2     1.7    +      -       +      -
    949G  LEU*     2.9    46.9    +      -       +      +
   1064G  HIS*     4.9     1.0    +      -       -      -
   1068G  ASN*     3.8    22.6    +      -       -      +
   1071G  ILE*     3.8    16.2    -      -       +      -
    915L  ASN*     2.8    70.5    +      -       -      +
    916L  GLY*     4.6     0.8    -      -       -      +
    918L  GLU*     2.5    40.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 946 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    944G  VAL*     3.9    15.3    -      -       +      +
    945G  ARG*     1.3    80.3    -      -       -      +
    947G  LEU*     1.3    76.0    +      -       -      +
    949G  LEU*     3.7     5.1    +      -       -      +
    950G  LYS*     3.4    19.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 947 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678G  ASN*     4.1    22.0    -      -       -      +
    679G  PHE      3.7    23.3    -      -       -      +
    680G  PRO*     4.9     9.9    -      -       +      -
    681G  ILE*     5.4     2.0    -      -       +      -
    682G  PHE*     4.8    16.2    -      -       +      -
    943G  LYS*     4.0    33.0    -      -       +      +
    944G  VAL*     3.2    14.8    +      -       +      +
    945G  ARG      3.2     0.4    -      -       -      -
    946G  ASP*     1.3    92.3    -      -       -      +
    948G  HIS*     1.3    68.1    +      -       -      +
    950G  LYS*     3.0    16.4    +      -       -      +
    951G  TRP*     3.0    29.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 948 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    940G  GLY*     3.5    17.1    +      -       -      +
    941G  PRO*     3.3    43.2    -      -       +      +
    944G  VAL      3.0    16.4    +      -       -      +
    945G  ARG*     3.6     4.3    -      -       -      +
    947G  LEU*     1.3    78.3    -      -       -      +
    949G  LEU*     1.3    61.9    +      -       +      +
    951G  TRP*     3.3     4.9    +      -       -      +
    952G  THR*     2.8    48.3    +      -       -      -
    988G  GLN*     3.6    11.4    -      -       -      -
    992G  ILE*     5.2     0.9    -      -       +      -
   1068G  ASN*     3.7    26.4    -      -       -      +
   1071G  ILE*     4.6     1.8    -      -       +      -
   1072G  TRP*     2.9    36.8    +      +       -      -
   2117G  IBM      4.7     1.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 949 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    945G  ARG*     2.9    45.2    +      -       +      +
    946G  ASP*     4.1     4.7    -      -       -      +
    948G  HIS*     1.3    71.7    -      -       +      +
    950G  LYS*     1.3    66.9    +      -       -      +
    952G  THR*     3.3     3.7    +      -       -      +
    953G  GLU*     2.9    25.3    +      -       -      +
   1071G  ILE*     4.1     7.4    -      -       +      -
   1072G  TRP*     3.6    36.3    -      -       +      -
    918L  GLU*     3.2    30.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 950 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    682G  PHE*     3.5    49.8    -      -       +      -
    946G  ASP*     3.4    13.1    +      -       -      +
    947G  LEU*     3.0    10.6    +      -       -      +
    949G  LEU*     1.3    80.1    -      -       -      +
    951G  TRP*     1.3    64.3    +      -       -      +
    953G  GLU*     3.4    28.4    +      -       -      +
    954G  GLY*     3.3    12.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 951 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    681G  ILE*     4.2     8.4    -      -       +      +
    682G  PHE*     3.6    37.0    -      +       -      -
    736G  TYR*     3.6    38.1    -      +       +      +
    738G  ASN*     5.1     3.1    -      -       -      -
    740G  ILE*     3.8    15.0    -      -       +      -
    741G  HIS*     3.8    32.8    -      -       +      -
    744G  ASP*     3.3    36.7    +      -       +      -
    939G  ASN*     5.4     1.6    -      -       -      -
    940G  GLY*     4.7    21.1    -      -       -      -
    943G  LYS*     5.0     4.3    -      -       +      +
    947G  LEU*     3.0    35.6    +      -       +      +
    948G  HIS*     3.8     6.5    -      -       -      +
    950G  LYS*     1.3    75.4    -      -       -      +
    952G  THR*     1.3    66.6    +      -       -      +
    954G  GLY*     2.8    14.6    +      -       -      -
    955G  ILE*     3.0    19.8    +      -       +      +
   2117G  IBM      5.7     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 952 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    948G  HIS*     2.8    33.4    +      -       -      -
    949G  LEU*     3.5     9.1    -      -       +      -
    951G  TRP*     1.3    75.2    -      -       -      +
    953G  GLU*     1.3    64.5    +      -       -      +
    955G  ILE*     3.2    13.9    +      -       +      +
    956G  VAL*     3.0    27.1    +      -       +      +
    984G  LEU*     3.7    24.5    -      -       +      -
    988G  GLN*     2.8    40.2    +      -       +      +
   1072G  TRP*     4.4     8.4    -      -       +      -
   2117G  IBM      4.6     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 953 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    949G  LEU      2.9    12.6    +      -       -      +
    950G  LYS*     3.4    40.0    +      -       -      +
    952G  THR*     1.3    77.0    -      -       -      +
    954G  GLY*     1.3    58.9    +      -       -      +
    956G  VAL*     3.1     9.4    -      -       +      +
    957G  ASN*     2.6    49.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 954 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735G  PRO*     3.6    24.0    -      -       -      +
    736G  TYR*     3.7     9.1    -      -       -      +
    950G  LYS      3.3     6.0    +      -       -      -
    951G  TRP*     2.8    16.2    +      -       -      -
    953G  GLU*     1.3    73.7    +      -       -      +
    955G  ILE*     1.3    62.8    +      -       -      -
    957G  ASN*     3.3     5.8    +      -       -      -
    958G  GLU*     3.1    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 955 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736G  TYR*     3.4    41.5    -      -       +      +
    951G  TRP*     3.0    29.8    +      -       +      +
    952G  THR*     3.2     8.3    +      -       +      +
    954G  GLY*     1.3    73.5    -      -       -      +
    956G  VAL*     1.3    61.9    +      -       +      +
    958G  GLU*     3.2     5.6    +      -       -      +
    959G  PHE*     2.9    57.8    +      -       +      -
    988G  GLN*     5.2     0.2    -      -       -      +
   2117G  IBM      3.6    53.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 956 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    952G  THR*     3.0    13.6    +      -       +      +
    953G  GLU*     3.1    19.7    -      -       +      +
    955G  ILE*     1.3    77.2    -      -       +      +
    957G  ASN*     1.3    66.5    +      -       -      +
    959G  PHE*     3.0     8.5    +      -       +      +
    960G  TYR*     2.7    63.1    +      -       +      +
    976G  PHE      5.5     0.4    -      -       -      +
    984G  LEU*     3.6    32.8    -      -       +      -
    987G  LEU*     3.9    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 957 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735G  PRO*     4.0    14.0    -      -       +      +
    953G  GLU*     2.6    47.0    +      -       -      +
    954G  GLY*     3.7     6.4    -      -       -      +
    955G  ILE      3.3     0.4    -      -       -      -
    956G  VAL*     1.3    79.8    -      -       -      +
    958G  GLU*     1.3    62.9    +      -       -      +
    960G  TYR*     3.4    14.4    +      -       -      +
    961G  GLU*     3.1    26.9    +      -       -      +
    979G  ARG*     4.7     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 958 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734G  ILE*     3.8     6.4    -      -       +      +
    735G  PRO*     3.4    19.9    -      -       +      +
    736G  TYR*     2.8    30.5    +      -       +      -
    737G  HIS*     2.6    42.5    +      -       -      -
    825G  HIS*     4.4     0.2    +      -       -      -
    827G  GLY*     3.3    35.4    -      -       -      +
    954G  GLY      3.1     8.9    +      -       -      +
    955G  ILE*     3.4     9.4    -      -       -      +
    956G  VAL      3.1     0.2    -      -       -      -
    957G  ASN*     1.3    75.6    -      -       -      +
    959G  PHE*     1.3    70.6    +      -       +      +
    961G  GLU*     3.1    10.5    +      -       -      +
    962G  GLN*     3.1    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 959 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    737G  HIS*     6.0     2.7    -      -       -      -
    829G  THR*     4.5    13.2    -      -       +      -
    955G  ILE*     2.9    41.0    +      -       +      -
    956G  VAL*     3.5    10.8    -      -       -      +
    958G  GLU*     1.3    80.8    -      -       +      +
    960G  TYR*     1.3    58.0    +      -       +      +
    962G  GLN*     3.1     8.0    +      -       -      +
    963G  GLY      2.8    23.6    +      -       -      -
    975G  PRO      5.8     0.2    -      -       -      -
    976G  PHE*     4.4     8.5    -      -       +      +
    977G  MET*     3.5    54.3    -      -       +      +
    987G  LEU*     4.1    29.8    -      -       +      -
   2117G  IBM      4.0    29.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with TYR 960 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    956G  VAL*     2.7    52.4    +      -       +      +
    957G  ASN*     3.8     9.6    -      -       -      +
    959G  PHE*     1.3    73.6    -      -       +      +
    961G  GLU*     1.3    58.2    +      -       -      +
    963G  GLY*     3.1     1.0    +      -       -      -
    964G  ASP*     2.9    34.3    +      -       -      +
    976G  PHE      3.4    21.9    +      -       -      -
    977G  MET*     3.4    23.0    -      -       -      +
    978G  ASP      4.1     3.6    -      -       -      -
    979G  ARG*     3.4    56.1    -      -       +      +
    982G  PRO*     3.5    23.9    -      -       +      +
    983G  GLN      4.8     0.2    +      -       -      -
    984G  LEU*     4.7    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 961 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734G  ILE*     5.3     4.0    -      -       -      +
    735G  PRO*     3.7    28.0    -      -       -      +
    828G  ARG*     3.8    18.4    +      -       -      +
    957G  ASN*     3.1    16.5    +      -       -      +
    958G  GLU*     3.1    10.0    +      -       -      +
    960G  TYR*     1.3    74.9    -      -       -      +
    962G  GLN*     1.3    65.8    +      -       -      +
    964G  ASP*     3.2     7.9    +      -       -      +
    965G  GLU*     3.1    19.8    +      -       -      +
    979G  ARG*     4.4     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 962 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    827G  GLY      4.4     1.3    -      -       -      +
    828G  ARG*     3.6    25.8    -      -       +      +
    829G  THR*     3.1    46.0    +      -       -      +
    832G  PHE*     3.6    26.6    -      -       +      +
    958G  GLU      3.1    12.3    +      -       -      +
    959G  PHE*     3.1    10.3    +      -       -      +
    961G  GLU*     1.3    77.4    -      -       -      +
    963G  GLY*     1.3    57.9    +      -       -      +
    965G  GLU*     3.2     2.9    +      -       -      +
    966G  GLU*     3.0    47.8    +      -       -      +
    974G  SER*     3.9     3.6    +      -       -      -
    977G  MET*     3.4    22.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 963 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    778F  ARG*     4.7     0.2    -      -       -      -
    959G  PHE      2.8    10.7    +      -       -      -
    960G  TYR      3.1     0.4    +      -       -      -
    961G  GLU      3.0     0.4    -      -       -      -
    962G  GLN*     1.3    75.1    -      -       -      +
    964G  ASP*     1.3    65.8    +      -       -      +
    966G  GLU*     3.2    16.0    +      -       -      +
    967G  ALA*     2.9    23.4    +      -       -      +
    973G  ILE*     3.9    13.0    -      -       -      +
    977G  MET*     3.5    23.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 964 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776F  ASP*     4.2     2.4    -      -       -      +
    777F  GLY*     3.8    26.2    -      -       -      +
    778F  ARG*     2.8    46.1    +      -       +      +
    960G  TYR      2.9    12.5    +      -       -      +
    961G  GLU*     3.2     9.4    +      -       -      +
    963G  GLY*     1.3    75.6    -      -       -      +
    965G  GLU*     1.3    56.8    +      -       -      +
    967G  ALA*     3.2     3.8    -      -       -      +
    968G  ASN*     2.9    32.5    +      -       -      -
    979G  ARG*     2.5    34.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 965 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    872F  LEU*     4.9     2.9    -      -       -      +
    873F  HIS*     3.4    30.6    +      -       +      +
    828G  ARG*     2.7    35.6    +      -       -      +
    832G  PHE*     3.6    21.0    -      -       +      -
    961G  GLU      3.1     7.1    +      -       -      +
    962G  GLN      3.6     7.4    -      -       -      +
    963G  GLY      3.1     0.8    -      -       -      -
    964G  ASP*     1.3    74.3    -      -       -      +
    966G  GLU*     1.3    68.5    +      -       -      +
    967G  ALA      3.0     1.1    -      -       -      -
    968G  ASN*     2.9    10.7    +      -       -      +
    969G  LEU*     2.8    39.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 966 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    832G  PHE*     3.7    21.1    -      -       +      +
    962G  GLN*     3.0    29.7    +      -       -      +
    963G  GLY*     3.6    15.6    +      -       -      +
    965G  GLU*     1.3    74.7    -      -       -      +
    967G  ALA*     1.3    59.4    +      -       -      +
    969G  LEU*     3.1     8.8    +      -       -      -
    970G  GLY      3.1     3.3    +      -       -      -
    971G  LEU*     2.7    43.3    +      -       +      +
    972G  PRO      4.1    15.4    -      -       -      +
    973G  ILE*     3.5     5.3    -      -       -      +
    974G  SER*     2.6    48.4    +      -       -      -
    977G  MET*     4.5     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 967 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    778F  ARG*     4.1    20.2    -      -       +      +
    963G  GLY      2.9    13.0    +      -       -      +
    964G  ASP*     3.2    13.7    -      -       -      +
    966G  GLU*     1.3    76.7    -      -       -      +
    968G  ASN*     1.3    57.1    +      -       -      +
    970G  GLY*     2.6    29.6    +      -       -      -
    971G  LEU      4.3     6.0    +      -       -      -
    973G  ILE*     4.2    14.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 968 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    714F  LYS*     4.4    12.1    -      -       -      +
    777F  GLY      3.1    23.4    +      -       -      -
    778F  ARG*     3.6     5.1    -      -       -      +
    779F  ILE*     3.1    36.7    +      -       +      +
    781F  HIS*     5.1    10.1    +      -       -      -
    872F  LEU      4.3     0.7    -      -       -      +
    873F  HIS*     3.8    40.9    +      -       +      +
    964G  ASP      2.9    19.6    +      -       -      +
    965G  GLU*     2.9    16.9    +      -       -      +
    967G  ALA*     1.3    71.9    -      -       -      +
    969G  LEU*     1.3    58.5    +      -       -      +
    970G  GLY      3.1     1.2    +      -       -      -
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Residues in contact with LEU 969 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    872F  LEU*     3.6    25.6    -      -       +      +
    873F  HIS*     3.4    27.4    -      -       +      +
    832G  PHE*     3.9    22.2    -      -       +      -
    836G  THR*     4.1     9.0    -      -       +      -
    965G  GLU*     2.8    36.2    +      -       -      +
    966G  GLU      3.6     4.9    -      -       -      +
    967G  ALA      3.0     0.4    +      -       -      -
    968G  ASN*     1.3    72.9    -      -       -      +
    970G  GLY*     1.3    62.4    +      -       -      +
    971G  LEU*     3.4    32.0    +      -       +      +
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il